A heating, ventilation and/or air-conditioning device for a motor vehicle, with a housing which includes a first duct for a first air stream, a second duct for a second air stream, a partition placed inside the housing so as to separate the ducts, a first heat exchanger arranged in the ducts, said heat exchanger being common to the two ducts, a second heat exchanger which is located downstream of the first heat exchanger and is arranged within a single duct, a first flap located downstream of the second heat exchanger, an air stream guide wall which is arranged inside the first duct, downstream of the first heat exchanger, and directs the first air stream in the direction of the first flap. The housing includes a space between the air stream guide wall and the first flap so that the first flap will not abut against the air stream guide wall.

The present invention relates to an air conditioner for a vehicle, which can remarkably improve resistance against an air flow in an air passageway, thereby enhancing efficiency. The air conditioner for a vehicle includes: a case having an air inlet, an air outlet, and an air passageway formed therein; a blower unit for blowing air to the air inlet; and a cooling means and a heating means disposed in the air passageway of the case in an air flow direction in order, wherein the air outlet of the case includes a floor outlet and vent outlets, the floor outlet and the vent outlets are arranged below the heating means in a height direction, and the floor outlet is arranged within a range of the width of the heating means.

An air conditioning device for a vehicle includes: a side vent valve (first valve) to open/close a first air outlet opening to a unit case; a side defrost valve (second valve) to open/close a second air outlet opening to the unit case; a cam body having a substantially cylindrical shape and axially supported so as to be rotatable about a central axis; a side vent cam mechanism (first cam mechanism) linking with a side surface of the cam body and the side vent valve, to open/close a side vent air outlet (first air outlet) in conjunction with the cam body being rotated; and a side defrost cam mechanism (second cam mechanism) linking with an end surface of the cam body and the side defrost valve, to open/close a side defrost air outlet (second air outlet) in conjunction with the cam body being rotated.

A HVAC system (100) includes a housing (10) with at least one first inlet (20) and at least one second inlet (30) formed thereon, at least one first door (20a), at least one second door (30a) and an intermediate door (40). The first inlet (20) and the second inlet (30) is for ingress of a first fluid stream and a second fluid stream inside the housing (10). The first door (20a) and the second door (30a) moves with respect to the first inlet (20) and the second inlet (30) respectively to define an open configuration, a closed configuration and a partially open configuration thereof. The intermediate door (40) is disposed between the first inlet (20) and the second inlet (30) and moves between a deployed and an un-deployed configuration to respectively disrupt and allow fluid flow there across. The intermediate door (40) is a sliding door.

Provided is a damper of an air vent for a vehicle, in which an operating member and a pad member are assembled with a structure in which a coupling protrusion of the operating member is inserted into a coupling hole of the pad member. As dimensions of the damper become accurate, a gap is not formed, thereby preventing air leakage. Moreover, due to no need for overlap of the pad member, the operating force of the damper is reduced and becomes uniform, and friction noise of the pad member in operation is prevented. Furthermore, an assembly method is simple, facilitating automation and expecting productivity improvement.

A vehicular air conditioning system provided with a cooling heat exchanger and a heating heat exchanger includes a cold air flow path through which an air passing through the cooling heat exchanger bypasses the heating heat exchanger, a hot air flow path through which the air passing through the cooling heat exchanger passes, a plurality of temperature doors configured to allow the air passing through the cooling heat exchanger to selectively pass through the heating heat exchanger, and an interlocking part configured to allow the temperature doors to be driven in conjunction with each other.

The present invention relates to a damper door (1) having an axis of rotation (3), a first face (5), and a second face opposite the first face (5), said first (5) and second faces of the damper door (1) defining a plane, said damper door (1) comprising: •a rotation shaft (9) projecting from each side of the plane defined by the first (5) and second faces of the damper door (1), and •at least one side wall (11) having a flat surface arranged radially with respect to the rotation shaft (9), characterised in that the rotation shaft (9) has, in the plane of the at least one side wall (11), a semi-elliptical shape (13) extending over the side wall (11) and comprising a large diameter (G1) coinciding with the axis of rotation (3) of the damper door (1) and a small radius (P1) parallel to the plane of the at least one side wall (11).

An air ventilation device of a vehicle includes: a housing including an air inlet and an air outlet and a cooling core and a heating core disposed between the air inlet and the air outlet; a rear extending flow path extending to the rear of the vehicle, and having a first end connected to the air outlet of the housing and a second end connected to a back seat air vent disposed to face a back seat space; an air collecting flow path directly connecting the rear extending flow path and the air inlet of the housing; and an opening and closing door structure opening and closing air circulation between the rear extending flow path and the air outlet and air circulation between the air collecting flow path and the air inlet.

A fluid distribution door for an air-handling system of a heating, ventilating, and air conditioning system includes an air-directing wall having a first major surface and an oppositely arranged second major surface, a bleed port projecting from the second major surface of the air-directing wall, and a bleed path formed through the fluid distribution door. The bleed path extends through the air-directing wall and the bleed port.

An air flap structure for a motor vehicle air-conditioning module includes at least two air outlet openings, a shaft, and a drive. The at least two air outlet openings each have an assigned closure flap configured to close and open the assigned air outlet opening. The shaft has therein the closure flaps arranged and is configured to rotate therewith. The closure flaps are rotatable into a closed and an opened position by a rotational movement of the shaft. The drive is configured to drive the shaft and configured to generate the rotational movement thereof. With respect to imaginary planes at both ends of the shaft, perpendicular to the shaft, the drive is arranged outside the axially outwardly facing sides of said two imaginary planes. A driving force of the drive is introduced onto the shaft exclusively between two adjacent air outlet openings of the at least two air outlet openings.